fix: discount rounding half up with half cents #651

Job	Run time
Integration test with react-recurly	56s
Integration test with react-recurly	56s
Unit test (Safari-Remote)	22m 38s
Unit test (Safari-Remote)	22m 38s
Check	55s
Check	55s
Unit test (Chrome)	1m 27s
Unit test (Chrome)	1m 27s
Unit test (Edge-Remote)	21m 31s
Unit test (Edge-Remote)	21m 31s
Unit test (Firefox)	1m 27s
Unit test (Firefox)	1m 27s
Unit test (iOS-16-Remote)	24m 10s
Unit test (iOS-16-Remote)	24m 10s
Unit test (Electron)	2m 25s
Unit test (Electron)	2m 25s
Unit test (iOS-15-Remote)	22m 56s
Unit test (iOS-15-Remote)	22m 56s
Unit test (Android-13-Remote)	23m 56s
Unit test (Android-13-Remote)	23m 56s
Unit test (Android-12-Remote)	2m 25s
Unit test (Android-12-Remote)	2m 25s
Unit test (Android-11-Remote)	2m 23s
Unit test (Android-11-Remote)	7m 10s
End-to-end test	1s
Publish artifacts	1s
Publish artifacts	1m 25s
Verify required checks	1s
Verify required checks	1s
End-to-end test (Chrome-Remote)	8m 11s
End-to-end test (Firefox-Remote)	8m 17s
End-to-end test (Safari-Remote)	6m 31s
End-to-end test (Edge-Remote)	8m 58s
End-to-end test (iOS-16-Remote)	10m 27s
End-to-end test (iOS-15-Remote)	6m 45s
End-to-end test (Android-13-Remote)	4m 13s
End-to-end test (Android-12-Remote)	4m 56s
End-to-end test (Android-11-Remote)	4m 36s
	5h 23m 28s

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